English

gemfish

From gem + fish.

A compound of gem + fish

Latin gemma ‘a swelling bud’

Middle English gemme

English gem

Proto-Indo-European *piskós

Proto-Germanic *fiskaz

Proto-West Germanic *fisk

Old English fisċ

Middle English fisch ‘an animal that inhabits the water or the meat…’

English fish

Today it means

noun A bottom-dwelling fish of the family Gempylidae, inhabiting deep waters off southern Australia.

Language periods are conventional ranges, not dates for this word.